<template>
  <div class="login">
    <div class="header">
      <img
        src="../assets/logo/logo-home.png"
        alt=""
        class="logo"
        @click="router.push({ path: '/' })"
      />
      <!-- <div class="logo" @click="router.push({ path: '/' })">养生茶商城</div> -->
    </div>
    <div class="login-card">
      <el-form
        ref="loginRef"
        :model="loginForm"
        :rules="loginRules"
        class="login-form"
      >
        <h3 class="title">登录</h3>
        <el-form-item prop="username">
          <el-input
            v-model="loginForm.username"
            type="text"
            size="large"
            auto-complete="off"
            placeholder="账号"
          >
            <template #prefix
              ><svg-icon icon-class="user" class="el-input__icon input-icon"
            /></template>
          </el-input>
        </el-form-item>
        <el-form-item prop="password">
          <el-input
            v-model="loginForm.password"
            type="password"
            size="large"
            auto-complete="off"
            placeholder="密码"
            @keyup.enter="handleLogin"
          >
            <template #prefix
              ><svg-icon
                icon-class="password"
                class="el-input__icon input-icon"
            /></template>
          </el-input>
        </el-form-item>
        <el-form-item prop="code" v-if="captchaEnabled">
          <el-input
            v-model="loginForm.code"
            size="large"
            auto-complete="off"
            placeholder="验证码"
            style="width: 63%"
            @keyup.enter="handleLogin"
          >
            <template #prefix
              ><svg-icon
                icon-class="validCode"
                class="el-input__icon input-icon"
            /></template>
          </el-input>
          <div class="login-code">
            <img :src="codeUrl" @click="getCode" class="login-code-img" />
          </div>
        </el-form-item>
        <el-checkbox
          v-model="loginForm.rememberMe"
          style="margin: 0px 0px 25px 0px"
          >记住密码</el-checkbox
        >
        <el-form-item style="width: 100%">
          <el-button
            :loading="loading"
            size="large"
            type="primary"
            style="width: 100%"
            @click.prevent="handleLogin"
            color="#78B001"
          >
            <span style="color: #fff" v-if="!loading">登 录</span>
            <span style="color: #fff" v-else>登 录 中...</span>
          </el-button>
        </el-form-item>
        <div
          style="
            margin-top: 10px;
            margin-bottom: 10px;
            display: flex;
            justify-content: center;
            font-size: 14px;
            color: #fff;
          "
          v-if="register"
        >
          还没有账号？
          <router-link
            class="link-type"
            :to="'/register'"
            style="color: #78b001"
            >立即注册</router-link
          >
        </div>
      </el-form>
    </div>

    <!--  底部  -->
    <div class="el-login-footer">
      <span>Copyright © 2018-2023 ruoyi.vip All Rights Reserved.</span>
    </div>
  </div>
</template>

<script setup>
import { getCodeImg } from "@/api/login";
import Cookies from "js-cookie";
import { encrypt, decrypt } from "@/utils/jsencrypt";
import useUserStore from "@/store/modules/user";

const userStore = useUserStore();
const route = useRoute();
const router = useRouter();
const { proxy } = getCurrentInstance();

const loginForm = ref({
  username: "admin",
  password: "admin123",
  rememberMe: false,
  code: "",
  uuid: "",
});

const loginRules = {
  username: [{ required: true, trigger: "blur", message: "请输入您的账号" }],
  password: [{ required: true, trigger: "blur", message: "请输入您的密码" }],
  code: [{ required: true, trigger: "change", message: "请输入验证码" }],
};

const codeUrl = ref("");
const loading = ref(false);
// 验证码开关
const captchaEnabled = ref(true);
// 注册开关
const register = ref(true);
const redirect = ref(undefined);

watch(
  route,
  (newRoute) => {
    redirect.value = newRoute.query && newRoute.query.redirect;
  },
  { immediate: true }
);

function handleLogin() {
  proxy.$refs.loginRef.validate((valid) => {
    if (valid) {
      loading.value = true;
      // 勾选了需要记住密码设置在 cookie 中设置记住用户名和密码
      if (loginForm.value.rememberMe) {
        Cookies.set("username", loginForm.value.username, { expires: 30 });
        Cookies.set("password", encrypt(loginForm.value.password), {
          expires: 30,
        });
        Cookies.set("rememberMe", loginForm.value.rememberMe, { expires: 30 });
      } else {
        // 否则移除
        Cookies.remove("username");
        Cookies.remove("password");
        Cookies.remove("rememberMe");
      }
      // 调用action的登录方法
      userStore
        .login(loginForm.value)
        .then(() => {
          const query = route.query;
          const otherQueryParams = Object.keys(query).reduce((acc, cur) => {
            if (cur !== "redirect") {
              acc[cur] = query[cur];
            }
            return acc;
          }, {});
          router.push({ path: redirect.value || "/", query: otherQueryParams });
        })
        .catch(() => {
          loading.value = false;
          // 重新获取验证码
          if (captchaEnabled.value) {
            getCode();
          }
        });
    }
  });
}

function getCode() {
  getCodeImg().then((res) => {
    captchaEnabled.value =
      res.captchaEnabled === undefined ? true : res.captchaEnabled;
    if (captchaEnabled.value) {
      codeUrl.value = "data:image/gif;base64," + res.img;
      loginForm.value.uuid = res.uuid;
    }
  });
}

function getCookie() {
  const username = Cookies.get("username");
  const password = Cookies.get("password");
  const rememberMe = Cookies.get("rememberMe");
  loginForm.value = {
    username: username === undefined ? loginForm.value.username : username,
    password:
      password === undefined ? loginForm.value.password : decrypt(password),
    rememberMe: rememberMe === undefined ? false : Boolean(rememberMe),
  };
}

getCode();
getCookie();
</script>

<style lang="scss" scoped>
.login {
  padding-right: 8%;
  display: flex;
  justify-content: flex-end;
  align-items: center;
  height: 100%;
  background-image: url("../assets/images/mall/bg/login_bg.jpg");
  background-size: cover;
  position: relative;
  :deep(.el-checkbox) {
    --el-checkbox-text-color: #fff;
    --el-checkbox-checked-text-color: #89c901;
    --el-checkbox-checked-bg-color: #89c901;
    --el-checkbox-checked-input-border-color: #89c901;
  }
  .header {
    position: absolute;
    width: 100%;
    left: 0;
    right: 0;
    top: 0;
    padding: 10px 20px;
    background: #fff;
    // box-shadow: 0 4px 6px rgba(59, 59, 59, 0.137);
    backdrop-filter: blur(10px);
    .logo {
      margin-left: 10px;
      font-size: 25px;
      color: #78b001;
      letter-spacing: 2px;
      height: 50px;
      object-fit: cover;
    }
  }
}
.title {
  // margin: 0px auto 30px auto;
  margin-bottom: 20px;
  text-align: center;
  color: #fff;
  font-size: 26px;
  letter-spacing: 0.5em;
}
.login-card {
  box-shadow: 0px 6px 24px rgba(230, 230, 230, 1);
  border-radius: 20px;
}

.login-form {
  background: rgba(0, 0, 0, 0.2);
  backdrop-filter: blur(30px);
  width: 360px;
  padding: 30px 30px 30px 30px;
  border-radius: 20px;
  overflow: hidden;
  .el-input {
    height: 50px;
    :deep(.el-input__wrapper) {
      background: #fcfdfd;
    }
    input {
      height: 50px;
    }
  }
  .input-icon {
    height: 48px;
    width: 14px;
    margin-left: 0px;
  }
}
.login-tip {
  font-size: 13px;
  text-align: center;
  color: #bfbfbf;
}
.login-code {
  width: 33%;
  height: 40px;
  float: right;
  img {
    cursor: pointer;
    vertical-align: middle;
  }
}
.el-login-footer {
  height: 40px;
  line-height: 40px;
  position: fixed;
  bottom: 0;
  width: 100%;
  text-align: center;
  color: #fff;
  font-family: Arial;
  font-size: 12px;
  letter-spacing: 1px;
}
.login-code-img {
  height: 40px;
  padding-left: 12px;
}
</style>
